短語(yǔ)詞組短語(yǔ)placing g boom 灌筑吊桿telescopic placing boom [紡]伸縮式布料桿folding placing boom 折迭式布料桿Arms of Placing Boom 布料桿臂數(shù)Date of Placing Boom 布料桿參數(shù)placing boom opening area 布料作業(yè)范圍concrete placing boom 混凝土布料機(jī);混凝土澆灌架;干濕混凝土噴射機(jī)Tunnel placing Boom 隧道布料機(jī)Hydraulic Concrete Placing Boom 液壓混凝土布料機(jī) 返回 placing boom